diff -r 000000000000 -r 6474c204b198 dom/tests/browser/browser_bug1004814.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/tests/browser/browser_bug1004814.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const TEST_URI = "http://example.com/browser/dom/tests/browser/test_bug1004814.html";
+
+function test() {
+  waitForExplicitFinish();
+
+  ConsoleObserver.init();
+
+  var tab = gBrowser.addTab(TEST_URI);
+  gBrowser.selectedTab = tab;
+
+  registerCleanupFunction(function () {
+    gBrowser.removeTab(tab);
+  });
+}
+
+var ConsoleObserver = {
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
+
+  init: function() {
+    Services.obs.addObserver(this, "console-api-log-event", false);
+  },
+
+  destroy: function() {
+    Services.obs.removeObserver(this, "console-api-log-event");
+  },
+
+  observe: function(aSubject, aTopic, aData) {
+    var obj = aSubject.wrappedJSObject;
+    if (obj.arguments.length != 1 || obj.arguments[0] != 'bug1004814' ||
+        obj.level != 'timeEnd') {
+      return;
+    }
+
+    ok("timer" in obj, "ConsoleEvent contains 'timer' property");
+    ok("duration" in obj.timer, "ConsoleEvent.timer contains 'duration' property");
+    ok(obj.timer.duration > 0, "ConsoleEvent.timer.duration > 0: " + obj.timer.duration + " ~ 200ms");
+
+    this.destroy();
+    finish();
+  }
+};